exchange

Hi, all. I gave myself lots of time to worry about things (and learn) before I begin my first grow on Jan 1, but have a feeling that my brain will actually NEVER stop worrying. This might be the perfect hobby for my OCD tendencies :gassy:. My tent is 32"x32"x5' and I have a 6" Hydrofarm fan...

CEC is an acronym for cation exchange capacity and refers to a soilless medium or soil’s capacity to hold and exchange mineral nutrients. In this first part of a two-part article, we will talk about CEC, what it means and its importance. Chemistry 101 To understand what CEC is we need to...